Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e61ec814a0c7956…

MALICIOUS

PDF

78.5 KB Created: 2021-03-19 06:46:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 3d08dd7553eb7bb44c8b97de0d53bac3 SHA-1: dc331e6b99f84ffa3ebb54195548cf546d52856d SHA-256: 0e61ec814a0c7956336ce7f44522dae19a8ee4cbe190f02dbed93b48d8d4e19c
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://midufefew.ru/wix?keyword=the+krishna+key+pdf+in+tamil PDF link annotation
    • http://maturibcgj.space/nebulojub4ib74.pdfIn PDF document text
    • http://mitimewigupito.mypressonline.com/download_strongs_concordance_kjv_bible.pdfIn PDF document text
    • http://budokudepa.scienceontheweb.net/buticchi_libri.pdfIn PDF document text
    • http://rewita.fun/augusto_cury_downloadb0xto.pdfIn PDF document text
    • http://safetymirrors.xyz/27088846711nomx9.pdfIn PDF document text
    • http://antinomi.design/wokujasesapabefiwurazipup6bax2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tudawufed/10347046475.pdfIn PDF document text
    • https://s3.amazonaws.com/gawabog/apache_open_office_invoice_template.pdfIn PDF document text
    • https://40e214c1-1950-44e8-a195-e2c6eeb23253.filesusr.com/ugd/a517f4_69d15721e7114b148f7153799c974f36.pdf?index=trueIn PDF document text
    • http://furipurisebete.onlinewebshop.net/abdominal_ultrasound_in_dogs.pdfIn PDF document text
    • http://jatufivo.rf.gd/kedelanafuza.pdfIn PDF document text
    • https://089130c0-62ae-4bf1-a93c-656440fe8451.filesusr.com/ugd/738632_2f72f6f54ed54975ad5f41401e71a4d8.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/getamisugatajowizixuravut.pdfIn PDF document text
    • https://s3.amazonaws.com/jamuluvuvava/asp_net_mvc_5_tutorial_w3schools.pdfIn PDF document text
    • https://s3.amazonaws.com/wutezigojuxi/latest_hollywood_movies_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sifawekujiki/roxabe.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/cannibal_holocaust_1980_full_hd_movie.pdfIn PDF document text
    • http://bofoguvixevijin.epizy.com/how_to_use_quantitative_analysis.pdfIn PDF document text
    • https://0a38098d-26c8-4844-ab0b-2dfc398d7f8d.filesusr.com/ugd/fffd55_c30e8c7745d746c6a4baf804257f2f2c.pdf?index=trueIn PDF document text
    • http://zukusuvajijip.epizy.com/khan_academy_grammar_answer_key.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e6db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6DB 5076 bytes
SHA-256: 7df349d4a3a3cd26df270de876af3d77f83050549e8e65f490efb0b7cbd1bcfb
font_01_sfnt_off0000f7e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7E9 11488 bytes
SHA-256: 8a247dacd51c5670cbc685ee9408f16aebdcdd720b0822329c2f5720976d7af1
font_02_sfnt_off00011ec9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EC9 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

Open this report in the interactive analyzer, or submit your own file for analysis.